Home | History | Annotate | Download | only in animation 
      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef AnimatableLength_h
     32 #define AnimatableLength_h
     33 
     34 #include "core/animation/AnimatableValue.h"
     35 #include "platform/Length.h"
     36 
     37 namespace WebCore {
     38 
     39 class AnimatableLength FINAL : public AnimatableValue {
     40 public:
     41     static PassRefPtrWillBeRawPtr<AnimatableLength> create(const Length& length, float zoom)
     42     {
     43         return adoptRefWillBeNoop(new AnimatableLength(length, zoom));
     44     }
     45     Length length(float zoom, ValueRange) const;
     46 
     47 protected:
     48     virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
     49 
     50 private:
     51     static PassRefPtrWillBeRawPtr<AnimatableLength> create(double pixels, double percent, bool hasPixels, bool hasPercent)
     52     {
     53         return adoptRefWillBeNoop(new AnimatableLength(pixels, percent, hasPixels, hasPercent));
     54     }
     55     AnimatableLength(const Length&, float zoom);
     56     AnimatableLength(double pixels, double percent, bool hasPixels, bool hasPercent)
     57         : m_pixels(pixels)
     58         , m_percent(percent)
     59         , m_hasPixels(hasPixels)
     60         , m_hasPercent(hasPercent)
     61     {
     62         ASSERT(m_hasPixels || m_hasPercent);
     63     }
     64     virtual AnimatableType type() const OVERRIDE { return TypeLength; }
     65     virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
     66 
     67     virtual void trace(Visitor* visitor) OVERRIDE { AnimatableValue::trace(visitor); }
     68 
     69     double m_pixels;
     70     double m_percent;
     71     bool m_hasPixels;
     72     bool m_hasPercent;
     73 };
     74 
     75 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLength, isLength());
     76 
     77 } // namespace WebCore
     78 
     79 #endif // AnimatableLength_h
     80